Kipp&Zonen 2AP Sun Tracker - Manual (Page 97)

REFERENCE INFORMATION
96
• the reason for the reset:
Cold
the CO command;
too many tepid resets in rapid succession;
inconsistent parameters in non-volatile memory.
Tepid the WA command;
too many warm resets in rapid succession.
Warm initial positions are illegal
(probable cause: configuration changes).
No power cycle;
hardware failure;
software failure;
software fault.
• the kind of reset performed:
Cold
non-volatile memory re-initialised.
Tepid all parameters refreshed from non-volatile memory.
Warm all memory assumed valid, motors are reset.
• the last time the 2AP was running before the reset.
• the time at which the 2AP started running again.
• the number of tepid resets since the last successful reset.
• the number of warm resets since the last successful reset.
On a cold reset most of this information reflects default values.
restarting calculations because of configuration change
A configuration change may have changed the expected location of the sun in the sky. It will take
approximately two minutes from this time until the 2AP is "following sun".
restarting calculations error on motor during
The software recalculated the position of the sun since the during the indicated
and the current calculations have caused an unexpected condition. This can occur
under some rare circumstances such as a need to move the azimuth motor faster than it can go as
the sun travels directly overhead. The code should be reported to Kipp & Zonen if the
message is persistent.
settings restored from NVRAM
On a reset that restores operating parameters from non-volatile memory, this message is logged at
the time of that restoration.
sun sensor window may need cleaning
On this reading an inconsistency was detected in the sun sensor readings. If the message occurs
several times per day (in active mode) over the entire day, the sun sensor window should be
cleaned (occurrences of this log item during sunrise and sunset are normal due to atmospheric
refraction).
time corrected to next correction secs late
The Real Time Clock was set to the indicated time based on operator command or the more
accurate CPU crystal. This automated correction occurs every 8 hours. indicates a further
correction which will be made to correct for mean CPU crystal drift using the TC parameter, see
section 6.2.1. This message is also generated if Time Correction is activated and a clock correction
is made. See section 4.6.5.3.
travel limit encountered
A travel limit sensor suggested that a motor was not in the correct position. The 2AP moved to its
"home" position.